Oulun Rokotetutkimusklinikka, Oulu, Finland
Turun Rokotetutkimusklinikka, Turku, Finland
CEVAXIN, Panama, Panama
SNBL, Baltimore, Maryland, United States
California Research Foundation, San Diego, California, United States
Cincinnati Childrens Hospital Medical Center, Cincinnati, Ohio, United States
Hammersmith Medicines Research, London, United Kingdom